Mast Guide Bearing

The outer diameter of a mast guide bearing Image 2  shows TYPE 1, 2, 3, 4 acts directly against a steel mast rail. Mast guide bearings are intended for low speed, high load applications.The seals are very tight fitting. The grease fill is very high, typically over 90%.The internal design ball maximizes the load capacity. Depending upon the design of the mast and fork carriage assembly, mast guide bearings can be subject to very high radial and thrust loads, as well as high intermittent shock loads.